Illinois · EIA utility 59579

Sunnova

Residential electricity records · Behind the Meter

Annual average electricity bill

Reported residential service
Year	Monthly bill	Monthly kWh	Revenue per kWh	Customers
2023 source workbook	$133.46	801.1	16.66¢	599
2024 source workbook	$179.05	869.1	20.60¢	1,955

August 2024 to August 2025

$173.08 → $180.39 per customer · +$7.31 change

Revenue per kWh-$10.79

Usage per customer+$18.09

See every same-month comparison

Changes in average monthly bill per reported customer
Periods	Earlier bill	Later bill	Bill change	Contribution from revenue per kWh	Contribution from usage
August 2024 to August 2025	$173.08	$180.39	+$7.31	-$10.79	+$18.09
July 2024 to July 2025	$165.16	$180.50	+$15.34	+$13.33	+$2.01
June 2024 to June 2025	$173.13	$180.50	+$7.37	+$10.65	-$3.28
May 2024 to May 2025	$180.57	$180.62	+$0.06	+$2.34	-$2.28
April 2024 to April 2025	$170.98	$181.20	+$10.22	+$5.12	+$5.11
March 2024 to March 2025	$174.39	$180.14	+$5.75	-$4.53	+$10.28
February 2024 to February 2025	$170.25	$190.10	+$19.85	+$58.34	-$38.49
January 2024 to January 2025	$167.48	$188.32	+$20.84	-$105.36	+$126.20

See reported months and EIA data status

Monthly residential electricity figures
Month	Average bill	Average kWh	Revenue per kWh	Customers	EIA status
August 2025	$180.39	1,303.8	13.84¢	3,651	Final
July 2025	$180.50	1,285.5	14.04¢	3,651	Final
June 2025	$180.50	1,275.7	14.15¢	3,651	Final
May 2025	$180.62	1,246.9	14.49¢	3,650	Final
April 2025	$181.20	1,041.1	17.41¢	3,648	Final
March 2025	$180.14	1,026.1	17.55¢	3,642	Final
February 2025	$190.10	613.9	30.97¢	3,387	Final
January 2025	$188.32	527.2	35.72¢	3,237	Final
December 2024	$186.11	371.4	50.11¢	3,031	Final
November 2024	$182.81	449.8	40.65¢	2,737	Final
October 2024	$172.36	881.8	19.55¢	2,607	Final
September 2024	$186.01	957.4	19.43¢	2,474	Final
August 2024	$173.08	1,177	14.71¢	2,319	Final
July 2024	$165.16	1,270.7	13.00¢	2,268	Final
June 2024	$173.13	1,299.5	13.32¢	1,991	Final
May 2024	$180.57	1,262.8	14.30¢	1,757	Final
April 2024	$170.98	1,011.3	16.91¢	1,672	Final
March 2024	$174.39	968.3	18.01¢	1,438	Final
February 2024	$170.25	757.9	22.46¢	1,223	Final
January 2024	$167.48	269.4	62.18¢	1,105	Final

Average bill divides residential revenue by reported customers. Usage per customer divides residential kWh by the same count. Revenue per kWh divides total revenue by total kWh. Annual monthly averages divide each annual per-customer total by 12. Individual bills depend on usage, tariff and charges.
The contribution from revenue per kWh multiplies its change by the average of the two usage figures. The contribution from usage multiplies its change by the average of the two per-kWh figures. These contributions sum to the bill change before display rounding.
Utility annual rows use observed EIA-861 full-service residential data. A comparison requires matching form part and balancing-authority coverage. Monthly utility rows are reported full-service data from EIA-861M. State and national monthly totals include EIA adjustments. Compare the same calendar month across years to account for seasonality.
EIA-112 utility records match the EIA utility directory by unambiguous utility name and state. The report counts nonpayment events, including repeats on the same account. Reconnection totals cover events during the same month. State totals include EIA adjustments. An unavailable cell indicates missing or unmatched data.
Service counties come from the 2025 EIA-861 directory. A listed utility can serve part of a county. Bill averages on a utility page cover its reported customers across the state.